From mboxrd@z Thu Jan 1 00:00:00 1970 From: kraxel@redhat.com (Gerd Hoffmann) Date: Wed, 1 Jun 2016 23:43:29 +0200 Subject: [PATCH 20/32] dt-bindings: Add binding for brcm,bcm2835-sdhost. In-Reply-To: <1464817421-8519-1-git-send-email-kraxel@redhat.com> References: <1464817421-8519-1-git-send-email-kraxel@redhat.com> Message-ID: <1464817421-8519-21-git-send-email-kraxel@redhat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Eric Anholt This is the other SD controller on the platform, which can be swapped to the role of SD card host using pin muxing. Signed-off-by: Eric Anholt --- .../devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt | 3 +++ .../bindings/mmc/brcm,bcm2835-sdhost.txt | 24 ++++++++++++++++++++++ 2 files changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt diff --git a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt index 59476fb..3cc74e2 100644 --- a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt +++ b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhci.txt @@ -15,4 +15,7 @@ sdhci: sdhci { interrupts = <2 30>; clocks = <&clk_mmc>; bus-width = <4>; + dmas = <&dma 13>, + <&dma 13>; + dma-names = "tx", "rx"; }; diff --git a/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt new file mode 100644 index 0000000..074992c --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/brcm,bcm2835-sdhost.txt @@ -0,0 +1,24 @@ +Broadcom BCM2835 SDHOST controller + +This file documents differences between the core properties described +by mmc.txt and the properties that represent the BCM2835 controller. + +Required properties: +- compatible: Should be "brcm,bcm2835-sdhci". +- clocks: The clock feeding the SDHOST controller. + +Optional properties: +- dmas: DMA channels for read and write. + See Documentation/devicetree/bindings/dma/dma.txt for details + +Example: + +sdhost: sdhost at 7e202000 { + compatible = "brcm,bcm2835-sdhost"; + reg = <0x7e202000 0x100>; + interrupts = <2 24>; + clocks = <&clocks BCM2835_CLOCK_VPU>; + dmas = <&dma 13>, + <&dma 13>; + dma-names = "tx", "rx"; +}; -- 1.8.3.1